set-dialog-fields

Arguments:
dialog &rest names-and-values

Sets the value of controls on a dialog. The
dialog argument can be either a dialog object or the
name of a dialog. The names-and-values arguments
must be in pairs with the first argument being the name of a control
and the second being the new value, which must be suitable as a value
for the control. The values of all controls are modified as
specified. Calling this function is similar to calling set-dialog-field
for each name/value pair.